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Finding the Fourth Proportional to 79,465.56, 119,227.41 and 74,770.80

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Solution

The fourth proportional to 79,465.56, 119,227.41 and 74,770.80 is: 112,183.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,465.56 : 119,227.41 = 74,770.80 : x
  2. Step 2: Convert to fraction form
    79,465.56/119,227.41 = 74,770.80/x
  3. Step 3: Cross multiply
    79,465.56x = 119,227.41 × 74,770.80
  4. Step 4: Simplify right side
    79,465.56x = 8,914,728,827.63
  5. Step 5: Solve for x
    x = 8,914,728,827.63/79,465.56
  6. Step 6: Final answer
    x = 112,183.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.